ci: publish package to PyPI on release tags

.github/workflows/build-release.yml

@@ -119,3 +119,36 @@ jobs:
           prerelease: ${{ !startsWith(github.ref, 'refs/tags/') }}
           generate_release_notes: true
           files: release/**
+
+  publish-pypi:
+    needs: build
+    if: startsWith(github.ref, 'refs/tags/')
+    runs-on: ubuntu-latest
+    environment: pypi
+    permissions:
+      contents: read
+      id-token: write
+
+    steps:
+      - uses: actions/checkout@11d5960a326750d5838078e36cf38b85af677262  # v4.4.0
+        with:
+          persist-credentials: false
+
+      - uses: astral-sh/setup-uv@d4b2f3b6ecc6e67c4457f6d3e41ec42d3d0fcb86  # v5.4.2
+
+      - name: Verify tag matches package version
+        shell: bash
+        run: |
+          VERSION="$(uv run python -c 'import tomllib; print(tomllib.load(open("pyproject.toml", "rb"))["project"]["version"])')"
+          TAG_VERSION="${GITHUB_REF_NAME#v}"
+          if [[ "${TAG_VERSION}" != "${VERSION}" ]]; then
+            echo "::error::Tag ${GITHUB_REF_NAME} does not match pyproject.toml version ${VERSION}"
+            exit 1
+          fi
+
+      - name: Build Python distribution
+        shell: bash
+        run: uv build
+
+      - name: Publish to PyPI
+        uses: pypa/gh-action-pypi-publish@ba38be9e461d3875417946c167d0b5f3d385a247  # v1.14.1